I just had a thought..
I was looking at multiple leaves last night under a loop and did not find any mites.
There was a dropped leaf on the soil and I snatched that, put it in a jar and brought it under the stereo scope and found like a dozen instantly.
So I’ll do some more work, but I’m now wondering if these guys are primarily in the soil or the soil surface. Probably so..
Apparently crown mites do live primarily on the soil surface and feed off partially decomposing organic matter. So leaves on the soil surface would be a favorite spot for crown mites.